Dear all, We have setup a noanswer call forwarding, below is our configuration much like the example from onsip.org if (t_check_status("(480)|(408)")) { if (avp_pushto("$ruri", "s:fwdnoanswer")) { avp_delete("s:fwdnoanswer"); route(6); break; }; }; if (!load_gws()) { sl_send_reply("500", "Server Internal Error - Cannot load gateways"); return; }; ........... if (!next_gw()) { rewriteuri("sip:userbusy@211.102.91.134:443"); t_relay(); return; }; ........... We are not able to get result from next_gw() , debug as follow: 1(2604) load_gws(): DEBUG: Added gw_uri_avp <sip:@xxx.xxx.xxx.xxx:5060> 1(2604) load_gws(): DEBUG: Added gw_uri_avp <sip:@xxx.xxx.xxx.xxx:5060> 1(2604) does_uri_exit(): User in request uri does not exist 1(2604) is_user_in(): User is in group 'local' 1(2604) db_flags=3, flags=12 1(2604) DEBUG:avpops:load_avps: loaded avps = 1 1(2604) parse_headers: flags=ffffffffffffffff 1(2604) DEBUG:avpops:pushto_avps: 1 avps were processed 1(2604) next_gw(): No ruri_user AVP 1(2604) ERROR:tm:t_forward_nonack: no branch for forwarding 1(2604) ERROR: w_t_relay_to: t_relay_to failed Any idea? Thanks Ray